KR20210047694A - Structure for sealing door of machining center - Google Patents

Abstract

The present invention relates to a door sealing structure of a machining device, which comprises: a sealing unit fixated to a support of a machining device and disposed in a direction of facing a door of the machining device; and a cutting chip collection unit connected to the sealing unit and extended in a direction of facing the door to be disposed. When a cutting process is proceeded in a processing area (Y) of the machining device, the sealing unit is expanded to come in contact with the door and seals the processing area (Y) of the machining device, and the cutting chip collection unit can collect a cutting chip by magnetic force.

Description

Door sealing structure of machine tool{STRUCTURE FOR SEALING DOOR OF MACHINING CENTER}

The present invention relates to a door sealing structure of a machine tool, and more particularly, by sealing the gap of the door with an elastic expansion door contact method using hydraulic pressure, and collecting cutting chips by magnetic force, leakage/leakage of cutting oil and cutting chips is prevented. It relates to a door sealing structure of a machine tool that can be prevented.

In general, in a numerically controlled machine tool, cutting oil of a constant pressure is sprayed for the purpose of protecting the tool during processing of the workpiece, improving the precision of the processing surface, and removing cutting chips generated during processing. In addition, most of the cutting oil sprayed on the processing part of the workpiece is filtered and recirculated, but the scattered cutting oil remaining in the state of small particles by the spray impact is not directional, along with fine cutting chips, etc., to the cover or the cover surrounding the machine body without directionality. It is configured to be slid and adheres to a door that is opened and closed for processing and discharging of the workpiece, or is separated to the outside.

This phenomenon may fall toward the operator when the operator opens the door in order to attach and detach the workpiece, or flow to the outside along the guide rail of the door, spoiling the aesthetics and causing difficulty in maintenance and maintenance of the machine.

In FIG. 1, a door structure of a numerically controlled machine tool 1 is disclosed. A door (D) that opens and closes along a sliding line (2) is arranged on the body (5) of the machine tool, and a processing area (Y) that cuts and processes the material mounted on the main shaft (3) inside the door (D) Is formed.

In the case of the machine tool 1 disclosed in FIG. 1, leakage of cutting oil and fine cutting chips may occur at point E in general. In order to prevent this leakage problem, as shown in FIG. 2, in the related art, a wiper 12 fixed by bolting 13 to a support 11 formed on a machine tool is disposed.

However, the conventional wiper 12 is spaced apart from the door D so as not to hinder the opening and closing of the door D. Accordingly, the problem of leakage of cutting oil (A) and cutting chips (B) through spaced gaps still remains.

The present invention was conceived to solve the problems in the related art as described above, and an object of the present invention is to seal the gap in the door by the elastic expansion door contact method using hydraulic pressure, and to collect the cutting chips by magnetic force, thereby cutting oil and It is to provide a door sealing structure for machine tools that can prevent leakage/leakage of cutting chips.

The present invention for achieving the above objects relates to a door sealing structure of a machine tool, comprising: a sealing unit fixed to a support formed on the machine tool and disposed in a direction facing the door of the machine tool; And a cutting chip collecting unit connected to the sealing unit and extending in a direction facing the door, and when a cutting process is performed in the machining area of the machine tool, the sealing unit expands and contacts the door to work. The machining area of the machine is sealed, and the cutting chip collection unit may be configured to collect cutting chips by magnetic force.

In addition, in an embodiment of the present invention, the sealing unit includes: a fixing part fixed to the support and having an internal flow path through which a fluid is supplied; And an expansion part connected to the fixing part and having an expansion space connected to the inner flow path formed therein.

In addition, in an embodiment of the present invention, the expansion part is made of an elastic material, the cross section of the expansion part is oval, and may be configured in a column shape along the vertical direction of the door.

In addition, in an embodiment of the present invention, a hydraulic groove may be formed on the side facing the door in the expansion space of the expansion unit.

In addition, in an embodiment of the present invention, an expansion protrusion may be formed on the side facing the door from the outer surface of the expansion part.

In addition, in an embodiment of the present invention, an expansion protrusion is formed on the side facing the door from the outer surface of the expansion unit, and the expansion protrusion may be disposed at a position corresponding to the hydraulic groove.

In addition, in an embodiment of the present invention, the hydraulic groove may be formed in a rounding shape in an inward direction, and the expansion protrusion may be formed in a rounding shape in an outward direction.

In addition, in an embodiment of the present invention, the sealing unit includes: a fixing part fixed to the support and having an internal flow path therein; A unit frame connected to the fixing part and having a hydraulic space connected to the inner flow path formed therein; And an expansion bar connected to the unit frame and formed of an elastic material.

In addition, in an embodiment of the present invention, the expansion bar is made of an elastic material, the cross section of the expansion bar is square, and may be configured in a column shape along the vertical direction of the door.

In addition, in an embodiment of the present invention, the sealing unit includes: a fixing part fixed to the support and having an internal flow path therein; A unit frame connected to the fixing part and having a hydraulic space connected to the inner flow path formed therein; A moving groove formed in the unit frame; And a sealing block disposed in the moving groove and moving in the direction of the door according to the hydraulic level of the fluid supplied to the hydraulic space.

In addition, in an embodiment of the present invention, the sealing block is made of an elastic material, the cross section of the sealing block has a square shape, and may be configured in a column shape along the vertical direction of the door.

Further, in an embodiment of the present invention, when the hydraulic pressure in the hydraulic space increases, the sealing block moves along the moving groove in the direction of the door to seal the processing area, and when the hydraulic pressure in the hydraulic space decreases, the sealing block Can move in the opposite direction of the door along the moving groove.

In addition, in an embodiment of the present invention, the sealing unit, as the hydraulic pressure of the hydraulic space is lowered, when the sealing block moves in the opposite direction of the door along the moving groove, so as to provide an elastic force to the sealing block, It may include; an elastic body disposed in the moving groove.

In addition, in an embodiment of the present invention, the cutting chip collection unit may be an electromagnet.

In addition, in an embodiment of the present invention, the cutting chip collection unit protrudes from the end of the cutting chip collection unit in the direction of the processing area so as to prevent the cutting chips from flowing into the door at a distance between the door and the length direction of the door. It may include a; elongation formed according to the.

In addition, in an embodiment of the present invention, a barrier protrusion preventing leakage of cutting chips may be formed on the side facing the door from the elongated portion.

In addition, in an embodiment of the present invention, one or more collection grooves are formed on the cutting chip collection unit, and a sub-magnet is disposed close to the collection groove, and the sub-magnet has a relatively strong magnetic force compared to the cutting chip collection unit. Can be configured to form.

In addition, in an embodiment of the present invention, the submagnet may be an electromagnet.

In addition, in an embodiment of the present invention, the cutting chip collection unit may be disposed on the side of the processing area based on the sealing unit.

In addition, in an embodiment of the present invention, in order to prevent the sealing unit from being damaged by cutting chips scattered in the processing area, the cutting chip collection unit divides the sealing unit and the processing area, and It can be formed to be inclined.

According to the present invention, there is an effect of preventing leakage/leakage of cutting oil and cutting chips by sealing the gap of the door by the elastic expansion door contact method using hydraulic pressure and collecting cutting chips by magnetic force.

1 is a view showing a door structure of a numerically controlled machine tool.
2 is a view showing the structure of a wiper of a conventional machine tool door.
3A is a view showing an embodiment of a first embodiment of a door sealing structure of a machine tool according to the present invention.
3B is a view showing an operating state of the first embodiment of the door sealing structure of the machine tool according to the present invention.
Figure 4a is a view showing another form of the first embodiment of the door sealing structure of the machine tool of the present invention.
Figure 4b is a view showing another form of operation of the first embodiment of the door sealing structure of the machine tool of the present invention.
5A is a view showing an embodiment of a second embodiment of a door sealing structure of a machine tool according to the present invention.
5B is a view showing an operating state of a second embodiment of the door sealing structure of the machine tool according to the present invention.
Figure 6a is a view showing another form of the second embodiment of the door sealing structure of the machine tool of the present invention.
6B is a view showing another form of operation of the second embodiment of the door sealing structure of the machine tool according to the present invention.

Hereinafter, preferred embodiments of the door sealing structure of the machine tool according to the present invention will be described in detail with reference to the accompanying drawings.

3A is a view showing an embodiment of the first embodiment of the door sealing structure of the machine tool of the present inventors, and FIG. 3B is a view showing the operation state of the first embodiment of the door sealing structure of the machine tool of the present inventors. .

4A is a view showing another form of the first embodiment of the door sealing structure of the machine tool of the present inventors, and FIG. 4B is a view showing the operation state of another form of the first embodiment of the door sealing structure of the machine tool of the present inventors. .

First, referring to FIGS. 3A and 3B, a first embodiment of a door sealing structure of a machine tool according to the present invention may include a sealing unit 20 and a cutting chip collecting unit 90.

The sealing unit 20 may be fixed to the support 15 formed on the machine tool and disposed in a direction facing the door D of the machine tool, and the cutting chip collection unit 90 is the sealing unit 20 It is connected to and may be disposed to extend in a direction facing the door D. The cutting chip collection unit 90 may be formed to be inclined while facing the processing area (Y) direction.

As the sealing unit 20 and the cutting chip collecting unit 90 are formed, when a cutting process is performed in the machining area Y of the machine tool, the sealing unit 20 expands and contacts the door D. The processing area Y of the machine tool is sealed, and the cutting chip collecting unit 90 collects the cutting chips by magnetic force.

In order to implement the above operation method, the sealing unit 20 in the present invention may be configured to include a fixing part 33 and an expansion part 31.

The fixing part 33 is fixed to the support 15 and an internal flow path 34 through which a fluid is supplied may be formed.

The expansion part 31 may be connected to the fixing part 33 and an expansion space 32 connected to the inner flow path 34 may be formed therein. The fluid supplied through the inner flow path 34 is introduced into the expansion space 32.

Here, the expansion part 31 may be made of an elastic material. For example, it may be a rubber hose, but other materials made of an elastic material may be selected.

In the first embodiment of the present invention, the cross section of the expansion part 31 may have an oval shape, and may be configured in a column shape along the vertical direction of the door D.

Next, the cutting chip collection unit 90 may be disposed on the side facing the processing area Y from the sealing unit 20. In the present invention, the cutting chip collection unit 90 may be an electromagnet. Accordingly, when the machine tool user closes the door D and starts processing, the electromagnet can be automatically adjusted so that the fine cutting chips generated in the processing area Y are attached to the electromagnet and collected.

Here, the cutting chip collection unit 90 may be disposed on the processing area Y side with respect to the sealing unit 20, and the sealing unit ( In order to prevent damage 20), the sealing unit 20 and the processing area Y may be partitioned and may be formed to be inclined in the direction of the processing area Y.

On the other hand, Fig. 3b shows an operating state of the first embodiment of the door sealing structure of the machine tool according to the present invention.

Referring to FIG. 3B, when the user closes the door D to proceed with the processing in the processing area Y and supplies a fluid, the fluid flows along the inner flow path 34 and is supplied to the expansion space 32. The fluid supplied to the expansion space 32 expands the expansion part 31 by hydraulic pressure. At this time, the outer surface of the expansion part 31 is in contact with the door D to form a sealed area.

That is, since the surface of the door D and the outer surface of the expansion part 31 are in contact with each other, the cutting oil A and the fine cutting chips B cannot be separated to the outside through the gap of the door D.

And the user operates the electromagnet to separately collect the cutting chips (B). Accordingly, the cutting chips (B) generated during the cutting process in the processing area (Y) are made of metal, so they are attached to the electromagnet, and the user can collect only the cutting chips separately after the processing process is completed.

Next, referring to FIG. 4A, another form of the first embodiment of the door sealing structure of the machine tool according to the present invention is shown. In another form in the first embodiment of the present invention, the sealing unit 20 further includes a hydraulic groove 35 and an expansion protrusion 36, and the cutting chip collection unit 90 includes an extension part 97 and A barrier protrusion 92 may be further included.

First, the hydraulic groove 35 may be formed on the side facing the door D from the expansion space 32 of the expansion part 31.

In addition, the expansion protrusion 36 may be formed on the side facing the door D from the outer surface of the expansion part 31, and may be a position corresponding to the hydraulic groove 35.

Here, the hydraulic groove 35 may be formed in a rounding shape in an inward direction, and the expansion protrusion 36 may be formed in a rounding shape in an outward direction.

Next, the extension part 97 may be disposed to protrude in the direction of the processing area Y from the end of the cutting chip collection unit 90 so as to prevent the cutting chips from flowing into the door D at an interval. .

In addition, the barrier protrusion 92 may be formed on the side facing the door D from the extension part 97 to prevent leakage of cutting chips.

On the other hand, Figure 4b shows another type of operating state of the first embodiment of the door sealing structure of the machine tool of the present invention.

Referring to FIG. 4B, when the user closes the door D to proceed with the processing in the processing area Y and supplies a fluid, the fluid flows along the inner flow path 34 and is supplied to the expansion space 32. The fluid supplied to the expansion space 32 expands the expansion part 31 by hydraulic pressure. At this time, the outer surface of the expansion part 31 is in contact with the door D to form a sealed area.

At this time, the hydraulic pressure of the fluid acts relatively strongly on the hydraulic groove 35 compared to other parts of the expansion part 31 to expand the hydraulic groove 35 more, and accordingly, the hydraulic groove 35 The expansion protrusion 36 formed at a corresponding position also expands relatively more than other parts of the expansion part 31. Depending on the design specification, the portion where the hydraulic groove 35 and the expansion protrusion 36 are disposed may be made of a material having a different modulus of elasticity. In this case, it may have a modulus of elasticity that expands more than other parts of the expansion part 31.

Due to the expansion of the expansion protrusion 36, the surface of the door D and the outer surface of the expansion part 31 are in contact with each other, so that the cutting oil A and the fine cutting chips B close the gap of the door D. It is impossible to escape to the outside through it.

And the user operates the electromagnet to separately collect the cutting chips (B). Accordingly, the cutting chips (B) generated during the cutting process in the processing area (Y) are made of metal, so they are attached to the electromagnet, and the user can collect only the cutting chips separately after the processing process is completed.

At this time, the extension part 97 extends along the longitudinal direction of the door D and protrudes in the direction facing the processing area Y, so that the cutting chips B are the door D and the cutting chip collection unit 90 It will not be easy to move into the gap between them.

In addition, since the barrier protrusion 92 is formed in the extending portion 97 in the direction of the door D, leakage of the cutting chip B is also difficult.

In the first embodiment of the present invention, the cutting oil (A) and cutting chips (B) generated in the processing area (Y) through the expansion structure of the expansion part 31 and the electromagnet structure as described above fill the gap between the door (D). Through this, it is possible to prevent it from deviating to the outside.

On the other hand, in the first embodiment of the present invention, the cutting oil collection unit 90 may have the structure disclosed in FIGS. 5A and 6A as well as the above-described structure disclosed in FIGS. 3A and 4A. Since the coolant collection unit 90 and the sealing unit 20 can be described separately and can be configured individually, each shape of the cutting oil collection unit 90 described in the first and second embodiments can be mixed with each other. have.

That is, even though the various forms of the first embodiment are individually described, the sealing unit 20 and the cutting oil collection unit 90 can be individually combined not only in each form, but also in various forms of the second embodiment. As long as the structure is described in, even if each form is used interchangeably, it can be sufficiently supported.

Here, in order to avoid redundant description, a description of the structure of the cutting oil collection unit 90 disclosed in FIGS. 5A and 6A that can be applied to the first embodiment will be omitted. This will refer to the description of the first embodiment.

5A is a view showing an embodiment of the second embodiment of the door sealing structure of the machine tool of the present inventors, and FIG. 5B is a view showing the operation state of the second embodiment of the door sealing structure of the machine tool of the present inventors. .

6A is a view showing another form of the second embodiment for the door sealing structure of the machine tool of the present inventors, and FIG. 6B is a view showing the operation state of another form of the second embodiment of the door sealing structure of the machine tool of the present inventors. .

First, referring to FIGS. 5A and 5B, one form of a second embodiment of a door sealing structure of a machine tool according to the present invention may include a sealing unit 20 and a cutting chip collecting unit 90.

The sealing unit 20 may be fixed to the support 15 formed on the machine tool and disposed in a direction facing the door D of the machine tool, and the cutting chip collection unit 90 is the sealing unit 20 It is connected to and may be disposed to extend in a direction facing the door D. The cutting chip collection unit 90 may be formed to be inclined while facing the processing area (Y) direction.

As the sealing unit 20 and the cutting chip collecting unit 90 are formed, when a cutting process is performed in the machining area Y of the machine tool, the sealing unit 20 expands and contacts the door D. The processing area Y of the machine tool is sealed, and the cutting chip collecting unit 90 collects the cutting chips by magnetic force.

In order to implement the above operation method, the sealing unit 20 in the present invention may include a fixing part 44, a unit frame 41, and an expansion bar 43.

The fixing part 44 may be fixed to the support 15 and an internal flow path 45 through which a fluid is supplied may be formed.

The unit frame 41 may be connected to the fixing part 44, and a hydraulic space 42 connected to the inner flow path 45 may be formed therein. The fluid supplied through the inner flow path 45 flows into the hydraulic space 42 to form hydraulic pressure.

The expansion bar 43 is connected to the unit frame 41 and may be made of an elastic material. The expansion bar 43 may expand in the direction of the door D by hydraulic pressure, and an example of an elastic material may be a rubber plate, but is not limited thereto.

In the second embodiment of the present invention, the cross section of the expansion part may have a rectangular shape, and may be configured in a column shape along the vertical direction of the door (D).

Next, the cutting chip collection unit 90 may be disposed on the side facing the processing area Y from the sealing unit 20. In the present invention, the cutting chip collection unit 90 may be an electromagnet. Accordingly, when the machine tool user closes the door D and starts processing, the electromagnet can be automatically adjusted so that the fine cutting chips generated in the processing area Y are attached to the electromagnet and collected.

Here, the cutting chip collection unit 90 may be disposed on the processing area Y side with respect to the sealing unit 20, and the sealing unit ( In order to prevent damage 20), the sealing unit 20 and the processing area Y may be partitioned and may be formed to be inclined in the direction of the processing area Y.

The cutting chip collection unit 90 has an extension part 97 formed therein, and the extension part 97 prevents the cutting chips from flowing into the door D at a distance between the cutting chip collection unit 90. ) May be disposed to protrude in the direction of the processing region (Y).

In addition, in the second embodiment of the present invention, one or more collection grooves 94 are formed on the cutting chip collection unit 90, and a sub-magnet 95 is disposed in proximity to the collection groove 94, and the sub-magnet Compared to the cutting chip collecting unit 90, 95 may form a relatively strong magnetic force. This is to allow the user to intensively collect cutting chips into the collection groove 94.

To this end, the submagnet 95 may be an electromagnet, and the user may adjust the strength of the electromagnet. For example, by increasing the strength of the electromagnet of the sub-magnet 95 compared to the strength of the electromagnet applied to the cutting chip collecting unit 90 by the user, cutting chips are more concentrated in the collecting groove 94 to be collected. .

On the other hand, Fig. 5b shows an operating state of a second embodiment of the door sealing structure of the machine tool according to the present invention.

Referring to FIG. 5B, when the user closes the door D to proceed with the processing in the processing area Y and supplies a fluid, the fluid flows along the inner flow path 45 and is supplied to the hydraulic space 42. The fluid supplied to the hydraulic space 42 expands the expansion bar 43 by hydraulic pressure. At this time, the outer surface of the expansion bar 43 is in contact with the door D to form a sealed area.

That is, since the surface of the door D and the outer surface of the expansion bar 43 are in contact with each other, the cutting oil A and the fine cutting chips B cannot be separated to the outside through the gap of the door D.

And the user operates the electromagnet to separately collect the cutting chips (B). Accordingly, the cutting chips (B) generated during the cutting process in the processing area (Y) are made of metal, so they are attached to the electromagnet, and the user can collect only the cutting chips separately after the processing process is completed.

In addition, the user adjusts the strength of the electromagnet of the sub-magnet 95 so that the fine cutting chips (B) are intensively collected in the collection groove (94), so that the cutting chips (B) made of metal are more intensively collected in the collection groove (94). You can have a lot of it collected.

Next, referring to FIG. 6A, another form of the second embodiment of the door sealing structure of the machine tool according to the present invention may include a sealing unit 20 and a cutting chip collection unit 90.

The sealing unit 20 may be fixed to the support 15 formed on the machine tool and disposed in a direction facing the door D of the machine tool, and the cutting chip collection unit 90 is the sealing unit 20 It is connected to and may be disposed to extend in a direction facing the door D. The cutting chip collection unit 90 may be formed to be inclined while facing the processing area (Y) direction.

As the sealing unit 20 and the cutting chip collecting unit 90 are formed, when a cutting process is performed in the machining area Y of the machine tool, the sealing unit 20 expands and contacts the door D. The processing area Y of the machine tool is sealed, and the cutting chip collecting unit 90 collects the cutting chips by magnetic force.

In the present invention in order to implement the above operation method, the sealing unit 20 may include a fixing part 44, a unit frame 41, a moving groove 48, and a sealing block 47.

The fixing part 44 may be fixed to the support 15 and an internal flow path 45 through which a fluid is supplied may be formed.

The unit frame 41 may be connected to the fixing part 44, and a hydraulic space 42 connected to the inner flow path 45 may be formed therein. The fluid supplied through the inner flow path 45 flows into the hydraulic space 42 to form hydraulic pressure.

The moving groove 48 may be formed in the unit frame 41, and the sealing block 47 may be disposed in the moving groove 48 and formed of an elastic material. The sealing block 47 may be moved in the direction of the door D by hydraulic pressure, and an example of an elastic material may be a rubber block, but is not limited thereto.

In the second embodiment of the present invention, the cross section of the sealing block 47 may have a rectangular shape, and may be configured in a column shape along the vertical direction of the door (D).

When the hydraulic pressure of the hydraulic space 42 increases according to the structure, the sealing block 47 moves in the direction of the door D along the moving groove 48 to seal the processing area, and the hydraulic space ( When the hydraulic pressure of 42) is lowered, the sealing block 47 may be moved along the moving groove 48 in the opposite direction of the door D.

Since the sealing block 47 is made of an elastic material, the sealing block 47 can be in close contact with the surface of the door (D).

In addition, in the present invention, when the sealing unit 20 moves in the opposite direction of the door D along the moving groove 48 as the hydraulic pressure of the hydraulic space 42 is lowered , In order to provide an elastic force to the sealing block 47, it may further include an elastic body 49 disposed in the moving groove 48.

That is, when the hydraulic pressure of the hydraulic space 42 is lowered, the elastic body 49 may push the sealing block 47 in the opposite direction of the door D to return the sealing block 47. The elastic body 49 may be, for example, a coil spring, a leaf spring, or a wave spring, but is not limited thereto.

Next, the cutting chip collection unit 90 may be disposed on the side facing the processing area Y from the sealing unit 20. In the present invention, the cutting chip collection unit 90 may be an electromagnet. Accordingly, when the machine tool user closes the door D and starts processing, the electromagnet can be automatically adjusted so that the fine cutting chips generated in the processing area Y are attached to the electromagnet and collected.

Meanwhile, although not shown in FIG. 6A, as shown in FIG. 5A, an extension part 97 may be formed in the cutting chip collection unit 90, and the extension part 97 includes a cutting chip in the door D The cutting chip collection unit 90 may be disposed to protrude from the end of the cutting chip collection unit 90 in the direction of the processing region Y so as to prevent the inflow of the cutting chip at a distance of.

In addition, in the second embodiment of the present invention, one or more collection grooves 94 may be formed on the cutting chip collection unit 90, and a submagnet 95 may be disposed in proximity to the collection groove 94. , The sub-magnet 95 may form a relatively strong magnetic force compared to the cutting chip collection unit 90. Through this, the user can intensively collect the cutting chips into the collection groove 94.

In addition, the submagnet 95 may be an electromagnet, and the user may adjust the strength of the electromagnet. For example, the user can increase the strength of the electromagnet of the sub-magnet 95 compared to the strength of the electromagnet applied to the cutting chip collection unit 90 so that the cutting chips are more concentrated in the collecting groove 94 and collected. have.

On the other hand, Figure 6b shows another type of operation state of the second embodiment of the door sealing structure of the machine tool according to the present invention.

Referring to FIG. 6B, when the user closes the door D to proceed with the processing in the processing area Y and supplies a fluid, the fluid flows along the inner flow path 45 and is supplied to the hydraulic space 42. The fluid supplied to the hydraulic space 42 moves the sealing block 47 in the direction of the door D by hydraulic pressure. At this time, the outer surface of the sealing block 47 is in contact with the door D to form a sealed area.

That is, since the surface of the door D and the outer surface of the sealing block 47 are in contact with each other, the cutting oil A and the fine cutting chips B cannot be separated to the outside through the gap of the door D.

And the user operates the electromagnet to separately collect the cutting chips (B). Accordingly, the cutting chips (B) generated during the cutting process in the processing area (Y) are made of metal, so they are attached to the electromagnet, and the user can collect only the cutting chips separately after the processing process is completed.

In addition, in the case of the structure as shown in FIG. 5B, the user adjusts the strength of the electromagnet of the sub-magnet 95 more strongly so that the fine cutting chips B are intensively collected in the collection groove 94, ) Can be collected more than in the collection groove (94).

On the other hand, in the second embodiment of the present invention, the cutting oil collection unit 90 may have the structure disclosed in FIGS. 3A and 4A as well as the above-described structure disclosed in FIGS. 5A and 6A. Since the coolant collection unit 90 and the sealing unit 20 can be described separately and can be configured individually, each shape of the cutting oil collection unit 90 described in the first and second embodiments can be mixed with each other. have.

That is, even though the various forms of the first embodiment are individually described, the sealing unit 20 and the cutting oil collection unit 90 can be individually combined not only in each form, but also in various forms of the second embodiment. As long as the structure is described in, even if each form is used interchangeably, it can be sufficiently supported.

Here, in order to avoid redundant description, a description of the structure of the cutting oil collection unit 90 disclosed in FIGS. 3A and 4A that can be applied to the second embodiment will be omitted. This will refer to the description of the first embodiment.

The above is only showing a specific embodiment of the door sealing structure of the machine tool.

Therefore, it is to be clarified that those of ordinary skill in the art can easily grasp that the present invention can be substituted or modified in various forms within the scope of the scope of the present invention described in the following claims. do.

15: support
20: sealing unit 31: expansion unit
32: expansion space 33: fixed government
34: internal flow path 35: hydraulic groove
36: expansion protrusion 41: unit frame
42: hydraulic space 43: expansion bar
44: fixed government 45: internal euro
47: sealing block 48: moving groove
49: elastomer
90: cutting chip collection unit 92: barrier protrusion
94: collection groove 95: sub-magnet
97: kidney
A:Cutting oil B:Cutting chips
D: Door Y: Processing area

Claims (20)

A sealing unit fixed to the support formed on the machine tool and disposed in a direction facing the door of the machine tool; And
Including; a cutting chip collection unit connected to the sealing unit and extending in a direction facing the door,
When the cutting process proceeds in the machining area of the machine tool, the sealing unit expands and contacts the door to seal the machining area, and the cutting chip collection unit collects cutting chips by magnetic force. rescue.
The method of claim 1,
The sealing unit,
A fixing part fixed to the support and having an internal flow path through which a fluid is supplied; And
An expansion part connected to the fixing part and having an expansion space connected to the inner flow path formed therein;
Door sealing structure of a machine tool comprising a.
The method of claim 2,
The expansion part is made of an elastic material, the cross section of the expansion part has an oval shape, and the door sealing structure of a machine tool is configured in a column shape along the vertical direction of the door.
The method of claim 2,
A door sealing structure of a machine tool, characterized in that a hydraulic groove is formed on the side facing the door in the expansion space of the expansion unit.
The method of claim 2,
The door sealing structure of the machine tool, characterized in that the expansion protrusion is formed on the side facing the door from the outer surface of the expansion part.
The method of claim 4,
An expansion protrusion is formed on the side facing the door from the outer surface of the expansion unit, wherein the expansion protrusion is disposed at a position corresponding to the hydraulic groove.
The method according to claim 5 or 6,
The hydraulic groove is formed in a rounding shape in the inward direction,
The door sealing structure of a machine tool, characterized in that the expansion protrusion is formed in a rounding shape in an outward direction.
The method of claim 1,
The sealing unit,
A fixing part fixed to the support and having an internal flow path formed therein;
A unit frame connected to the fixing part and having a hydraulic space connected to the inner flow path formed therein; And
An expansion bar connected to the unit frame and formed of an elastic material;
Door sealing structure of a machine tool comprising a.
The method of claim 8,
The expansion bar is made of an elastic material, the cross section of the expansion bar has a rectangular shape, and the door sealing structure of a machine tool, characterized in that configured in a column shape along the vertical direction of the door.
The method of claim 1,
The sealing unit,
A fixing part fixed to the support and having an internal flow path formed therein;
A unit frame connected to the fixing part and having a hydraulic space connected to the inner flow path formed therein;
A moving groove formed in the unit frame; And
A sealing block disposed in the moving groove and moving toward the door according to the hydraulic level of the fluid supplied to the hydraulic space;
Door sealing structure of the machine tool comprising a.
The method of claim 10,
The sealing block is made of an elastic material, the cross section of the sealing block has a rectangular shape, and the door sealing structure of a machine tool, characterized in that configured in a column shape along the vertical direction of the door.
The method of claim 10,
When the hydraulic pressure of the hydraulic space is increased, the sealing block moves in the direction of the door along the moving groove to seal the processing area,
When the hydraulic pressure in the hydraulic space is lowered, the sealing block moves in a direction opposite to the door along the moving groove.
The method of claim 11 or 12,
The sealing unit,
And an elastic body disposed in the movable groove so as to provide an elastic force to the sealing block when the sealing block moves along the movable groove in a direction opposite to the door as the hydraulic pressure in the hydraulic space is lowered. Door sealing structure of machine tools
The method of claim 1,
The door sealing structure of the machine tool, characterized in that the cutting chip collection unit is an electromagnet.
The method of claim 14,
The cutting chip collection unit includes an extension portion protruding from an end of the cutting chip collection unit in the direction of the processing area and formed along the length direction of the door so as to prevent the cutting chips from flowing into the door at a distance from the door. Door sealing structure of a machine tool, characterized in that.
The method of claim 15,
A door sealing structure of a machine tool, characterized in that a barrier protrusion preventing leakage of cutting chips is formed on a side facing the door from the extension part.
The method of claim 13 or 14,
One or more collection grooves are formed on the cutting chip collection unit,
A door sealing structure of a machine tool, wherein a sub-magnet is disposed close to the collection groove, and the sub-magnet forms a relatively strong magnetic force compared to the cutting chip collection unit.
The method of claim 17,
The door sealing structure of a machine tool, characterized in that the sub-magnet is an electromagnet.
The method of claim 1,
The cutting chip collecting unit is a door sealing structure of a machine tool, characterized in that disposed on the processing area side with respect to the sealing unit.
The method of claim 19,
The cutting chip collection unit, in order to prevent damage to the sealing unit by cutting chips scattered in the processing area, divide the sealing unit and the processing area, and are formed to be inclined in the direction of the processing area. The door sealing structure of the machine.

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